[Freesurfer] Coordinates transformation from conformed space to the original FLAIR image

2020-02-13 Thread Xiaojiang Yang
External Email - Use Caution Hi everyone, I have used both T1 and (T2) Flair images as inputs to recon-all, and I have generated some coordinates (ROI) that I can transform to the original T1 images. Basically, I use the two matrixes obtained from the mri_info -- vox2ras commands:

[Freesurfer] Systematically Navigating .sphere vertices

2020-02-13 Thread Mcnorgan, Christopher
External Email - Use Caution I’m interested in working with data mapped to the .sphere icosohedrons. I understand from a response from Doug back in 2017 that: waveforms = fast_vol2mat(MRIread('waveform.nii.gz')); will give me a v x time matrix of values from my functional val

[Freesurfer] ROI Analysis in a given label with Functional Constraint in FSFAST

2020-02-13 Thread Star Xi
External Email - Use Caution FS experts,Commonly, I can use mri_vol2vol -> mri_segstats to extract anatomical ROI from aparc or aseg template.However, now I want to extract the average percent signal change in the hV5+/MT by constrained  positive functiona

[Freesurfer] study design flair T1

2020-02-13 Thread Renew Andrade
External Email - Use Caution Dear FreeSurfer experts: I am dealing with a crossectional retrospective case control study where I don't have all subjects with the same inaging protocols. I do have T1 for all of them although some have T2 others FLAIR others T2+FLAIR (besides T1